Man – made CFCs are the main cause of ozone depletion in the stratosphere.

  • 人造氯氟烃是臭氧层破坏的主因.

  • 互联网摘选 2025-01-18 13:13:21

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句